... A4,A3,LSB 2,Weight:80gsm,75g,70gsm 3,Whiteness: 92-96%,98-100%,102-104% 4,Material:Bamboo pulp Bamboo pulp A4 copy paper ... of the equipment,protect your healthy4. Exactly humidity control,more clear & flat when printing 5. With white&smooth paper ... ,can cross the machine smoothy,can avoid double paper be sent at one time.6. Double used,high-speed copy ... 104%Packing500 sheets per ream, 5 ...